Comparison of the dogs times to the times of the winners and other runners per track

Last 8 races of the dog are taken into account.

dwt= Difference in seconds between the dog's time and the average winning time on this track on that quarter of the yeardt= Difference in seconds between the dog's time and the average runner time on this track on that quarter of the year

A negative number means the dog was faster that the average winning/runner time.A positive number means the dog was slower than the average winning/runner time.